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Third Grade Life Science - Science Fair Project Ideas

Great selection of third grade science fair project ideas. These science fair projects can help you find third grade level ideas for your science fair.

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Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' noseprints and discover just how unique they are!
Can Nose Prints Be Used to Identify Dogs?
Third Grade
Life Science
This science fair project examines how seeds hitchhike on animals and clothing.
How Do Seeds Hitchhike?
Third Grade
Botany
This fun experiment provides a concrete and visually striking illustration of photosynthesis.
Demonstrating Photosynthesis: Writing in Grass
Third Grade
Life Science
Science fair project which determines what types of foods ants like to eat, by monitoring the lives of ants in a colony.
What Does an Ant Eat for Breakfast?
Third Grade
Life Science
This project explores whether plants can live and grow when 'watered' with juice, soda, or milk.
Feeding Plants
Third Grade
Life Science
In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.
Pruning Tomato Plants
Third Grade
Botany
In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.
Warm, Warmer: How Does Exercise Change Body Temperature?
Third Grade
Anatomy
In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.
How Important Are Cats' Whiskers?
Third Grade
Life Science
Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!
Under What Conditions Do Potatoes Sprout The Fastest
Third Grade
Botany
Do you think heat can affect a plant's growth rate?
Heating Plants: The Great Growth Race
Third Grade
Botany
Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.
Mental Mix Up: Experimenting with Your Ability to Focus
Third Grade
Life Science
Enter the buzz worthy world of bee watching and find out what time bees like to wake up!
Bee Watcher: What's Buzzing?
Third Grade
Zoology
Set off an a science adventure as you prepare a row of bee homes for your new visitors.
Bee Homes: Which Nest is Best?
Third Grade
Zoology
Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!
Spider Science: Exploring the World of Webs
Third Grade
Zoology
In this experiment we will be determining whether birds prefer certain colors of seed.
Do Birds Have a Favorite Color?
Third Grade
Life Science

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